Chameleon Bonaparte  

, カメレオン·ボナパルト

In the forest within Onimarus Fortress, there resides a chameleon that speaks French and has the ability to transform its shape and color. This creature abducts Kagetora, Shonosuke, and Gerozaemon before assuming the form of Yaiba in an attempt to deceive the group. However, after being discovered, the chameleon is defeated by the combined efforts of Kojiro and Yaiba.